package example_10.ListDemo;

import java.util.ArrayList;
import java.util.List;

public class ArrayListDemo_01 {
    public static void main(String[] args) {
        List list = new ArrayList();
        list.add("胡大伟");
        list.add(123);
        list.add(0,"张三");


        list.add(3,"李四");
        System.out.println(list);
    }
}
